[IMP] web: FieldMany2One: add 'noOpen' option

This rev. allows to instantiate a FieldMany2one Widget with option
'noOpen' (which hides the external button allowing to open the
related record in a dialog).

This option already existed, but it had to be specified in the
nodeOptions (i.e. in the view arch), which is not convenient for
standalone fields for which there is no view.

Part of task 1853490

addons/web/static/src/js/fields/relational_fields.js

@@ -108,7 +108,12 @@ var FieldMany2One = AbstractField.extend({
     }),
     AUTOCOMPLETE_DELAY: 200,
 
-    init: function () {
+    /**
+     * @override
+     * @param {boolean} [options.noOpen=false] if true, there is no external
+     *   button to open the related record in a dialog
+     */
+    init: function (parent, name, record, options) {
         this._super.apply(this, arguments);
         this.limit = 7;
         this.orderer = new concurrency.DropMisordered();
@@ -121,6 +126,7 @@ var FieldMany2One = AbstractField.extend({
         this.nodeOptions = _.defaults(this.nodeOptions, {
             quick_create: true,
         });
+        this.noOpen = ('noOpen' in options || {}) ? options.noOpen : this.nodeOptions.no_open;
         this.m2o_value = this._formatValue(this.value);
         // 'recordParams' is a dict of params used when calling functions
         // 'getDomain' and 'getContext' on this.record
@@ -340,7 +346,7 @@ var FieldMany2One = AbstractField.extend({
     _renderReadonly: function () {
         var value = _.escape((this.m2o_value || "").trim()).split("\n").join("<br/>");
         this.$el.html(value);
-        if (!this.nodeOptions.no_open && this.value) {
+        if (!this.noOpen && this.value) {
             this.$el.attr('href', _.str.sprintf('#id=%s&model=%s', this.value.res_id, this.field.relation));
             this.$el.addClass('o_form_uri');
         }
@@ -481,7 +487,7 @@ var FieldMany2One = AbstractField.extend({
      * @private
      */
     _updateExternalButton: function () {
-        var has_external_button = !this.nodeOptions.no_open && !this.floating && this.isSet();
+        var has_external_button = !this.noOpen && !this.floating && this.isSet();
         this.$external_button.toggle(has_external_button);
         this.$el.toggleClass('o_with_button', has_external_button); // Should not be required anymore but kept for compatibility
     },
@@ -497,7 +503,7 @@ var FieldMany2One = AbstractField.extend({
      */
     _onClick: function (event) {
         var self = this;
-        if (this.mode === 'readonly' && !this.nodeOptions.no_open) {
+        if (this.mode === 'readonly' && !this.noOpen) {
             event.preventDefault();
             event.stopPropagation();
             this._rpc({
@@ -1777,6 +1783,7 @@ var FieldMany2ManyTags = AbstractField.extend({
         }
         this.many2one = new FieldMany2One(this, this.name, this.record, {
             mode: 'edit',
+            noOpen: true,
             viewType: this.viewType,
         });
         // to prevent the M2O to take the value of the M2M
@@ -1784,7 +1791,6 @@ var FieldMany2ManyTags = AbstractField.extend({
         // to prevent the M2O to take the relational values of the M2M
         this.many2one.m2o_value = '';
 
-        this.many2one.nodeOptions.no_open = true;
         this.many2one._getSearchBlacklist = function () {
             return self.value.res_ids;
         };